Leopard gecko eye problem

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I have a leopard gecko Rico, about 3 months ago I took her to the vet, and she was diagnosed with a severe eye infection, I have been giving her medicine, and I forse feed her. She hasn't eaten by herself sense December. Now she is so skinny she has no fat on tail and you can see almost all her bones 😭😭😭
I forse feed her about 3 mealworms each day and she still is not getting better, the only reason that she is still alive is because I forse feed her, should I stop and just let her die? I'm not sure if she will ever heal she might be blind by now 😭😭😭😭😭😭😭. It just hurts me soooooooooo much to see her like this. I've done everything I could. What should I do?????